Valve.



L. M. CARR at P. J. DUGAN.

VALVE.

APPLICATION FILED SEPT. 25, I912- 1,162,570, Patented Nov. 30, 1915.

E mo/whom lew/ia JZ Car-i" Pete?" fDzga/m LEWIS M. CARR AND PETER J.

DUGAN, OF NEW YORK, N. Y.

VALVE.

Specification of Letters Patent.

Patented Nov. 3t), 1915.

Application filed September 25, 1912. Serial No. 722,288.

To all whom it may concern:

Be it known that we, LEWIS M. CARR and PETER J. DUGAN, citizens of the United States, residing at New York city, in the county of New York and State of New York, have invented new and useful Improvements in Valves, of which the following is a specification.

This invention relates to valve structures and it consists in the novel features hereinafter described and claimed.

An object of the invention is to provide a valve especially adapted to be used in the capacity of a pilot valve in a tank for permitting Water to flow into the tank and which is also provided with means for antomatically bleeding or draining the valve when the water has reached a predetermined level in the tank.

In the'accompanying drawing the figure is a sectional view of the valve.

The valve apparatus comprises a main valve structure 1 and what is termed a pilot valve structure 2. The said main valve structure includes a body member having a disk 7 mounted on a piston rod 8 the said disk and rod being movable in the said body member.

The pilot valve structure 2 comprises a casing 10 having mounted therein a vertically reciprocating stem 11 in which circumferential grooves 12 and 13 are formed and adapted to register singly with port-ways 14; and 15 in said casing. The groove 12 is of greater transverse breadth than the groove 13. The stem is connected at 16 with one end of a rod 17 on which may be mounted a float (not shown) the latter being movable on the rise and fall of the water and designed to move the rod 17 to thereby effect an adjustment of the valve stem 11. A chamber 21 is formed in the casing 2 and as shown, said chamber is. connected to the by-pass 22 and said by-pa'ss also communicates with the port-ways 14 and 15 for a purpose to be presently explained. The port-way 14 also opens into a branch pipe 23 which leads from the valve structure 1. Longitudinal grooves 2 1 in the walls of the structure 1 are intended to establish communication at times between the opposite ends of the said structure and around the disk 7 whereby the water may be discharged through the pipe 26.

The main valve structure 1 is located in a supply tank (not shown) near the upper end thereof and is connected with a water supply pipe, (not shown). The water may enter the structure 1 whereit is conducted first into the connection 23 and then through the valve structure 10 and the bypass 22 by way of the opened port-ways 12 and 14 respectively. When the stem 11 is lifted so as to bring the port-way 13 into registration with the port-way 15 and to shift the relative positions of the port-ways 12 and 14, this bleeds the chamber 21.

WVhat is claimed as new is:

A valve comprising a body having an interior chamber provided with an outlet, said body also having spaced ports disposed transversely of the same and which open at one end at the side of the body and commu nicate at the other end with said chamber. a stem movably mounted in the body and eX- tending transversely across the said ports said stem being provided with grooves spaced from each other for a distance greater than the distance between the ports and adapted to be brought into register alternately with the said ports one of said grooves being of greater transverse breadth than the other.

In testimony whereof we aflix our signa tures in presence of two witnesses.

LEWIS M. CARR. PETER J. DUGAN. Witnesses:

J AMES H. Kori-IL, GEO. A. Brazen.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents, Washington, I). C. 

